Portsmouth Rhode Island Weather Almanac
Thursday, January 14, 2021
Cloudy early, Partly Cloudy and Hazy Day to Mostly Cloudy and Fog PM, Light Winds, Much Warmer
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    January 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   47   41   38   +9   59   in 2013   13   in 2004  
Minimum Temperature   34   36   24   +10   48   in 2006   -3   in 1954  
Average Temperature   41   39   31   +10   52   in 2006   7   in 2004  
 Month Avg Max Temperature   40.6   44.7   39.1   +1.6   48.6   in 2007   23.8   in 1981  
Month Avg Min Temperature   29.4   33.6   25.2   +4.1   37.0   in 2007   6.7   in 1981  
Month Average Temperature   35.0   39.2   32.1   +2.9   42.8   in 2007   15.3   in 1981  
Precipitation   .00   .02   .12   -.12   2.71   in 1978            
One Hour   .00   .01           .48   in 1978            
Hourly Rate   .00   .00           6.47   in 2008            
Month Precipitation   .45   .75   1.70   -1.25   6.72   in 1979   .12   in 1943  
Year Precipitation   .45   .75   1.70   -1.25   6.72   in 1979   .12   in 1943  
Snow   0.0   0.0   0.3   -0.3   7.6   in 1910            
Month Snow   0.3   1.5   4.2   -3.9   25.8   in 1996   0.0   in 2007  
Season Snow   8.3   9.9   11.3   -3.0   41.6   in 1996   0.2   in 1914  
Snow Depth   0   0           13   in 1974            
HDD   24   26   34   -10   58   in 2004   13   in 2006  
Month HDD   417   358   460   -43   693   in 1981   309   in 2007  
Season HDD   2065   2238   2328   -263   3060   in 1918   1751   in 2016  
CDD   0   0   0   +0   0   in   0   in    
Month CDD   0   0   0   +0   0   in     0   in    
Year CDD   0   0   0   +0   0   in     0   in    
Maximum Dew Point   39   38   30   +9   57   in 1995   -3   in 1988  
Minimum Dew Point   27   35   14   +13   48   in 2006   -24   in 2004  
Average  Dew Point   33   37   22   +11   52   in 2006   -13   in 1988  
 Month Avg Max Dew Point   26.9   32.4   31.6   -4.8   39.4   in 1950   9.5   in 1981  
Month Avg Min Dew Point   22.6   26.1   15.7   +6.8   28.9   in 2006   -10.4   in 1981  
Month Average Dew Point   24.8   32.6   23.7   +1.2   35.5   in 2007   -0.4   in 1981  
Maximum Humidity   89%   95%   86%   +3%   100%   in 2013   46%   in 1988  
Minimum Humidity   65%   83%   60%   +5%   94%   in 2006   25%   in 2004  
Average Humidity   77%   89%   73%   +4%   97%   in 2006   38%   in 1988  
Maximum Barometer   29.90   30.37   30.22   -00.32   30.72   in 1988   29.38   in 1992  
Minimum Barometer   29.80   30.10   29.90   -00.10   30.46   in 1962   28.95   in 1992  
Average Barometer   29.85   30.24   30.06   -00.21   30.56   in 1999   29.17   in 1992  
Average Wind   3.1   4.6   8.4   -5.3   20.4   in 1976   0.8   in 1960  
Direction   NNE   E   N       W         S        
High Wind Gust   14   11   27   -13   54   in 1976   9   in 1960  
Direction   NNE   NNE   NW       WSW         S        
High Heat Index                                      
Wind Chill   32   32   15   +17             -24   in 1988  
Maximum Water Temp   44.2   40.0   41.3   +2.9   50.4   in 2007   37.2   in 2011  
Minimum Water Temp   42.8   38.1   39.3   +3.5   47.8   in 2007   33.7   in 2018  
Average Water Temp   43.5   39.1   40.1   +3.4   49.1   in 2007   35.6   in 2018  
Sunrise/ AM Twilight   7:09:06 AM   6:38:41 AM            
Sunset / PM Twilight   4:40:19 PM   5:10:43 PM            
Length Of Day   9:31:13                          
Special Conditions   Fog, Haze                              
Comments      
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